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Version: v6

ion-slides

Contents

The Slides component is a multi-section container. Each section can be swiped or dragged between. It contains any number of Slide components.

This guide will cover migration from the deprecated ion-slides component to the framework-specific solutions that Swiper.js provides as well as the existing ion-slides API for developers who are still using that component.

Adopted from Swiper.js: The most modern mobile touch slider and framework with hardware accelerated transitions.

http://www.idangero.us/swiper/

Copyright 2016, Vladimir Kharlampidi The iDangero.us http://www.idangero.us/

Licensed under MIT

Migration

With the release of Ionic Framework v6, the Ionic Team has deprecated the ion-slides and ion-slide components in favor of using the official framework integrations provided by Swiper. Fear not! You will still be able to use slides components in your application. Additionally, because you are still using Swiper, the functionality of your slides component should remain exactly the same.

What is Swiper.js?

Swiper.js is the carousel/slider library that powers ion-slides. The library is bundled automatically with all versions of Ionic Framework. When Ionic Framework v4. was first released, Swiper did not have framework specific integrations of its library, so ion-slides was created as a way of bridging the gap between the core Swiper library and frameworks such as Angular, React, and Vue.

Since then, the Swiper team has released framework specific integrations of Swiper.js for Angular, React, Vue, and more!

What are the benefits of this change?

There are several benefits for members of the Ionic Framework community. By using the official Swiper.js framework integrations:

  • Developers can now be in control of the exact version of Swiper.js they want to use. Previously, developers would need to rely on the Ionic Team to update the version internally and release a new version of Ionic Framework.
  • The Ionic Team can spend more time triaging and fixing other non-slides issues, speeding up our development process so we can make the framework work better for our community.
  • Developers should experience fewer bugs.
  • Application bundle sizes can shrink in some cases. By installing Swiper.js as a 3rd party dependency in your application, bundlers such as Webpack or Rollup should be able to treeshake your code better.
  • Developers have access to new features that they previously did not have when using ion-slides.

How long do I have to migrate?

We plan to remove ion-slides and ion-slide in Ionic Framework v7. ion-slides and ion-slide will continue to be available for the entire Ionic Framework v6 lifecycle but will only receive critical bug fixes.

How do I migrate?

Since the underlying technology that powers your slides is the same, the migration process is easy! Follow the guides below for your specific framework.

Migration for Ionic Angular users

Migration for Ionic React users

Migration for Ionic Vue users

The following documentation applies to the ion-slides component.

Custom Animations

By default, Ionic slides use the built-in slide animation effect. Custom animations can be provided via the options property. Examples of other animations can be found below.

Coverflow

const slideOpts = {
  slidesPerView: 3,
  coverflowEffect: {
    rotate: 50,
    stretch: 0,
    depth: 100,
    modifier: 1,
    slideShadows: true,
  },
  on: {
    beforeInit() {
      const swiper = this;

      swiper.classNames.push(`${swiper.params.containerModifierClass}coverflow`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);

      swiper.params.watchSlidesProgress = true;
      swiper.originalParams.watchSlidesProgress = true;
    },
    setTranslate() {
      const swiper = this;
      const {
        width: swiperWidth, height: swiperHeight, slides, $wrapperEl, slidesSizesGrid, $
      } = swiper;
      const params = swiper.params.coverflowEffect;
      const isHorizontal = swiper.isHorizontal();
      const transform$$1 = swiper.translate;
      const center = isHorizontal ? -transform$$1 + (swiperWidth / 2) : -transform$$1 + (swiperHeight / 2);
      const rotate = isHorizontal ? params.rotate : -params.rotate;
      const translate = params.depth;
      // Each slide offset from center
      for (let i = 0, length = slides.length; i < length; i += 1) {
        const $slideEl = slides.eq(i);
        const slideSize = slidesSizesGrid[i];
        const slideOffset = $slideEl[0].swiperSlideOffset;
        const offsetMultiplier = ((center - slideOffset - (slideSize / 2)) / slideSize) * params.modifier;

         let rotateY = isHorizontal ? rotate * offsetMultiplier : 0;
        let rotateX = isHorizontal ? 0 : rotate * offsetMultiplier;
        // var rotateZ = 0
        let translateZ = -translate * Math.abs(offsetMultiplier);

         let translateY = isHorizontal ? 0 : params.stretch * (offsetMultiplier);
        let translateX = isHorizontal ? params.stretch * (offsetMultiplier) : 0;

         // Fix for ultra small values
        if (Math.abs(translateX) < 0.001) translateX = 0;
        if (Math.abs(translateY) < 0.001) translateY = 0;
        if (Math.abs(translateZ) < 0.001) translateZ = 0;
        if (Math.abs(rotateY) < 0.001) rotateY = 0;
        if (Math.abs(rotateX) < 0.001) rotateX = 0;

         const slideTransform = `translate3d(${translateX}px,${translateY}px,${translateZ}px)  rotateX(${rotateX}deg) rotateY(${rotateY}deg)`;

         $slideEl.transform(slideTransform);
        $slideEl[0].style.zIndex = -Math.abs(Math.round(offsetMultiplier)) + 1;
        if (params.slideShadows) {
          // Set shadows
          let $shadowBeforeEl = isHorizontal ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let $shadowAfterEl = isHorizontal ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if ($shadowBeforeEl.length === 0) {
            $shadowBeforeEl = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'left' : 'top'}"></div>`);
            $slideEl.append($shadowBeforeEl);
          }
          if ($shadowAfterEl.length === 0) {
            $shadowAfterEl = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'right' : 'bottom'}"></div>`);
            $slideEl.append($shadowAfterEl);
          }
          if ($shadowBeforeEl.length) $shadowBeforeEl[0].style.opacity = offsetMultiplier > 0 ? offsetMultiplier : 0;
          if ($shadowAfterEl.length) $shadowAfterEl[0].style.opacity = (-offsetMultiplier) > 0 ? -offsetMultiplier : 0;
        }
      }

       // Set correct perspective for IE10
      if (swiper.support.pointerEvents || swiper.support.prefixedPointerEvents) {
        const ws = $wrapperEl[0].style;
        ws.perspectiveOrigin = `${center}px 50%`;
      }
    },
    setTransition(duration) {
      const swiper = this;
      swiper.slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
    }
  }
}

Cube

const slideOpts = {
  grabCursor: true,
  cubeEffect: {
    shadow: true,
    slideShadows: true,
    shadowOffset: 20,
    shadowScale: 0.94,
  },
  on: {
    beforeInit: function() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}cube`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);

      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        resistanceRatio: 0,
        spaceBetween: 0,
        centeredSlides: false,
        virtualTranslate: true,
      };

      this.params = Object.assign(this.params, overwriteParams);
      this.originalParams = Object.assign(this.originalParams, overwriteParams);
    },
    setTranslate: function() {
      const swiper = this;
      const {
        $el, $wrapperEl, slides, width: swiperWidth, height: swiperHeight, rtlTranslate: rtl, size: swiperSize,
      } = swiper;
      const params = swiper.params.cubeEffect;
      const isHorizontal = swiper.isHorizontal();
      const isVirtual = swiper.virtual && swiper.params.virtual.enabled;
      let wrapperRotate = 0;
      let $cubeShadowEl;
      if (params.shadow) {
        if (isHorizontal) {
          $cubeShadowEl = $wrapperEl.find('.swiper-cube-shadow');
          if ($cubeShadowEl.length === 0) {
            $cubeShadowEl = swiper.$('<div class="swiper-cube-shadow"></div>');
            $wrapperEl.append($cubeShadowEl);
          }
          $cubeShadowEl.css({ height: `${swiperWidth}px` });
        } else {
          $cubeShadowEl = $el.find('.swiper-cube-shadow');
          if ($cubeShadowEl.length === 0) {
            $cubeShadowEl = swiper.$('<div class="swiper-cube-shadow"></div>');
            $el.append($cubeShadowEl);
          }
        }
      }

      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = slides.eq(i);
        let slideIndex = i;
        if (isVirtual) {
          slideIndex = parseInt($slideEl.attr('data-swiper-slide-index'), 10);
        }
        let slideAngle = slideIndex * 90;
        let round = Math.floor(slideAngle / 360);
        if (rtl) {
          slideAngle = -slideAngle;
          round = Math.floor(-slideAngle / 360);
        }
        const progress = Math.max(Math.min($slideEl[0].progress, 1), -1);
        let tx = 0;
        let ty = 0;
        let tz = 0;
        if (slideIndex % 4 === 0) {
          tx = -round * 4 * swiperSize;
          tz = 0;
        } else if ((slideIndex - 1) % 4 === 0) {
          tx = 0;
          tz = -round * 4 * swiperSize;
        } else if ((slideIndex - 2) % 4 === 0) {
          tx = swiperSize + (round * 4 * swiperSize);
          tz = swiperSize;
        } else if ((slideIndex - 3) % 4 === 0) {
          tx = -swiperSize;
          tz = (3 * swiperSize) + (swiperSize * 4 * round);
        }
        if (rtl) {
          tx = -tx;
        }

         if (!isHorizontal) {
          ty = tx;
          tx = 0;
        }

         const transform$$1 = `rotateX(${isHorizontal ? 0 : -slideAngle}deg) rotateY(${isHorizontal ? slideAngle : 0}deg) translate3d(${tx}px, ${ty}px, ${tz}px)`;
        if (progress <= 1 && progress > -1) {
          wrapperRotate = (slideIndex * 90) + (progress * 90);
          if (rtl) wrapperRotate = (-slideIndex * 90) - (progress * 90);
        }
        $slideEl.transform(transform$$1);
        if (params.slideShadows) {
          // Set shadows
          let shadowBefore = isHorizontal ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let shadowAfter = isHorizontal ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if (shadowBefore.length === 0) {
            shadowBefore = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'left' : 'top'}"></div>`);
            $slideEl.append(shadowBefore);
          }
          if (shadowAfter.length === 0) {
            shadowAfter = swiper.$(`<div class="swiper-slide-shadow-${isHorizontal ? 'right' : 'bottom'}"></div>`);
            $slideEl.append(shadowAfter);
          }
          if (shadowBefore.length) shadowBefore[0].style.opacity = Math.max(-progress, 0);
          if (shadowAfter.length) shadowAfter[0].style.opacity = Math.max(progress, 0);
        }
      }
      $wrapperEl.css({
        '-webkit-transform-origin': `50% 50% -${swiperSize / 2}px`,
        '-moz-transform-origin': `50% 50% -${swiperSize / 2}px`,
        '-ms-transform-origin': `50% 50% -${swiperSize / 2}px`,
        'transform-origin': `50% 50% -${swiperSize / 2}px`,
      });

       if (params.shadow) {
        if (isHorizontal) {
          $cubeShadowEl.transform(`translate3d(0px, ${(swiperWidth / 2) + params.shadowOffset}px, ${-swiperWidth / 2}px) rotateX(90deg) rotateZ(0deg) scale(${params.shadowScale})`);
        } else {
          const shadowAngle = Math.abs(wrapperRotate) - (Math.floor(Math.abs(wrapperRotate) / 90) * 90);
          const multiplier = 1.5 - (
            (Math.sin((shadowAngle * 2 * Math.PI) / 360) / 2)
            + (Math.cos((shadowAngle * 2 * Math.PI) / 360) / 2)
          );
          const scale1 = params.shadowScale;
          const scale2 = params.shadowScale / multiplier;
          const offset$$1 = params.shadowOffset;
          $cubeShadowEl.transform(`scale3d(${scale1}, 1, ${scale2}) translate3d(0px, ${(swiperHeight / 2) + offset$$1}px, ${-swiperHeight / 2 / scale2}px) rotateX(-90deg)`);
        }
      }

      const zFactor = (swiper.browser.isSafari || swiper.browser.isUiWebView) ? (-swiperSize / 2) : 0;
      $wrapperEl
        .transform(`translate3d(0px,0,${zFactor}px) rotateX(${swiper.isHorizontal() ? 0 : wrapperRotate}deg) rotateY(${swiper.isHorizontal() ? -wrapperRotate : 0}deg)`);
    },
    setTransition: function(duration) {
      const swiper = this;
      const { $el, slides } = swiper;
      slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
      if (swiper.params.cubeEffect.shadow && !swiper.isHorizontal()) {
        $el.find('.swiper-cube-shadow').transition(duration);
      }
    },
  }
}

Fade

const slideOpts = {
  on: {
    beforeInit() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}fade`);
      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        spaceBetween: 0,
        virtualTranslate: true,
      };
      swiper.params = Object.assign(swiper.params, overwriteParams);
      swiper.params = Object.assign(swiper.originalParams, overwriteParams);
    },
    setTranslate() {
      const swiper = this;
      const { slides } = swiper;
      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = swiper.slides.eq(i);
        const offset$$1 = $slideEl[0].swiperSlideOffset;
        let tx = -offset$$1;
        if (!swiper.params.virtualTranslate) tx -= swiper.translate;
        let ty = 0;
        if (!swiper.isHorizontal()) {
          ty = tx;
          tx = 0;
        }
        const slideOpacity = swiper.params.fadeEffect.crossFade
          ? Math.max(1 - Math.abs($slideEl[0].progress), 0)
          : 1 + Math.min(Math.max($slideEl[0].progress, -1), 0);
        $slideEl
          .css({
            opacity: slideOpacity,
          })
          .transform(`translate3d(${tx}px, ${ty}px, 0px)`);
      }
    },
    setTransition(duration) {
      const swiper = this;
      const { slides, $wrapperEl } = swiper;
      slides.transition(duration);
      if (swiper.params.virtualTranslate && duration !== 0) {
        let eventTriggered = false;
        slides.transitionEnd(() => {
          if (eventTriggered) return;
          if (!swiper || swiper.destroyed) return;
          eventTriggered = true;
          swiper.animating = false;
          const triggerEvents = ['webkitTransitionEnd', 'transitionend'];
          for (let i = 0; i < triggerEvents.length; i += 1) {
            $wrapperEl.trigger(triggerEvents[i]);
          }
        });
      }
    },
  }
}

Flip

const slideOpts = {
  on: {
    beforeInit() {
      const swiper = this;
      swiper.classNames.push(`${swiper.params.containerModifierClass}flip`);
      swiper.classNames.push(`${swiper.params.containerModifierClass}3d`);
      const overwriteParams = {
        slidesPerView: 1,
        slidesPerColumn: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        spaceBetween: 0,
        virtualTranslate: true,
      };
      swiper.params = Object.assign(swiper.params, overwriteParams);
      swiper.originalParams = Object.assign(swiper.originalParams, overwriteParams);
    },
    setTranslate() {
      const swiper = this;
      const { $, slides, rtlTranslate: rtl } = swiper;
      for (let i = 0; i < slides.length; i += 1) {
        const $slideEl = slides.eq(i);
        let progress = $slideEl[0].progress;
        if (swiper.params.flipEffect.limitRotation) {
          progress = Math.max(Math.min($slideEl[0].progress, 1), -1);
        }
        const offset$$1 = $slideEl[0].swiperSlideOffset;
        const rotate = -180 * progress;
        let rotateY = rotate;
        let rotateX = 0;
        let tx = -offset$$1;
        let ty = 0;
        if (!swiper.isHorizontal()) {
          ty = tx;
          tx = 0;
          rotateX = -rotateY;
          rotateY = 0;
        } else if (rtl) {
          rotateY = -rotateY;
        }

         $slideEl[0].style.zIndex = -Math.abs(Math.round(progress)) + slides.length;

         if (swiper.params.flipEffect.slideShadows) {
          // Set shadows
          let shadowBefore = swiper.isHorizontal() ? $slideEl.find('.swiper-slide-shadow-left') : $slideEl.find('.swiper-slide-shadow-top');
          let shadowAfter = swiper.isHorizontal() ? $slideEl.find('.swiper-slide-shadow-right') : $slideEl.find('.swiper-slide-shadow-bottom');
          if (shadowBefore.length === 0) {
            shadowBefore = swiper.$(`<div class="swiper-slide-shadow-${swiper.isHorizontal() ? 'left' : 'top'}"></div>`);
            $slideEl.append(shadowBefore);
          }
          if (shadowAfter.length === 0) {
            shadowAfter = swiper.$(`<div class="swiper-slide-shadow-${swiper.isHorizontal() ? 'right' : 'bottom'}"></div>`);
            $slideEl.append(shadowAfter);
          }
          if (shadowBefore.length) shadowBefore[0].style.opacity = Math.max(-progress, 0);
          if (shadowAfter.length) shadowAfter[0].style.opacity = Math.max(progress, 0);
        }
        $slideEl
          .transform(`translate3d(${tx}px, ${ty}px, 0px) rotateX(${rotateX}deg) rotateY(${rotateY}deg)`);
      }
    },
    setTransition(duration) {
      const swiper = this;
      const { slides, activeIndex, $wrapperEl } = swiper;
      slides
        .transition(duration)
        .find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left')
        .transition(duration);
      if (swiper.params.virtualTranslate && duration !== 0) {
        let eventTriggered = false;
        // eslint-disable-next-line
        slides.eq(activeIndex).transitionEnd(function onTransitionEnd() {
          if (eventTriggered) return;
          if (!swiper || swiper.destroyed) return;

          eventTriggered = true;
          swiper.animating = false;
          const triggerEvents = ['webkitTransitionEnd', 'transitionend'];
          for (let i = 0; i < triggerEvents.length; i += 1) {
            $wrapperEl.trigger(triggerEvents[i]);
          }
        });
      }
    }
  }
};

Usage

import { Component } from '@angular/core';

@Component({
  selector: 'slides-example',
  template: `
    <ion-content>
      <ion-slides pager="true" [options]="slideOpts">
        <ion-slide>
          <h1>Slide 1</h1>
        </ion-slide>
        <ion-slide>
          <h1>Slide 2</h1>
        </ion-slide>
        <ion-slide>
          <h1>Slide 3</h1>
        </ion-slide>
      </ion-slides>
    </ion-content>
  `
})
export class SlideExample {
  // Optional parameters to pass to the swiper instance.
  // See https://swiperjs.com/swiper-api for valid options.
  slideOpts = {
    initialSlide: 1,
    speed: 400
  };
  constructor() {}
}
/* Without setting height the slides will take up the height of the slide's content */
ion-slides {
  height: 100%;
}

Properties

mode

DescriptionThe mode determines which platform styles to use.
Attributemode
Type"ios" ๏ฝœ "md"
Defaultundefined

options

DescriptionOptions to pass to the swiper instance. See https://swiperjs.com/swiper-api for valid options
Attributeoptions
Typeany
Default{}

pager

DescriptionIf true, show the pagination.
Attributepager
Typeboolean
Defaultfalse

scrollbar

DescriptionIf true, show the scrollbar.
Attributescrollbar
Typeboolean
Defaultfalse

Events

NameDescription
ionSlideDidChangeEmitted after the active slide has changed.
ionSlideDoubleTapEmitted when the user double taps on the slide's container.
ionSlideDragEmitted when the slider is actively being moved.
ionSlideNextEndEmitted when the next slide has ended.
ionSlideNextStartEmitted when the next slide has started.
ionSlidePrevEndEmitted when the previous slide has ended.
ionSlidePrevStartEmitted when the previous slide has started.
ionSlideReachEndEmitted when the slider is at the last slide.
ionSlideReachStartEmitted when the slider is at its initial position.
ionSlidesDidLoadEmitted after Swiper initialization
ionSlideTapEmitted when the user taps/clicks on the slide's container.
ionSlideTouchEndEmitted when the user releases the touch.
ionSlideTouchStartEmitted when the user first touches the slider.
ionSlideTransitionEndEmitted when the slide transition has ended.
ionSlideTransitionStartEmitted when the slide transition has started.
ionSlideWillChangeEmitted before the active slide has changed.

Methods

getActiveIndex

DescriptionGet the index of the active slide.
SignaturegetActiveIndex() => Promise<number>

getPreviousIndex

DescriptionGet the index of the previous slide.
SignaturegetPreviousIndex() => Promise<number>

getSwiper

DescriptionGet the Swiper instance. Use this to access the full Swiper API. See https://swiperjs.com/swiper-api for all API options.
SignaturegetSwiper() => Promise<any>

isBeginning

DescriptionGet whether or not the current slide is the first slide.
SignatureisBeginning() => Promise<boolean>

isEnd

DescriptionGet whether or not the current slide is the last slide.
SignatureisEnd() => Promise<boolean>

length

DescriptionGet the total number of slides.
Signaturelength() => Promise<number>

lockSwipeToNext

DescriptionLock or unlock the ability to slide to the next slide.
SignaturelockSwipeToNext(lock: boolean) => Promise<void>

lockSwipeToPrev

DescriptionLock or unlock the ability to slide to the previous slide.
SignaturelockSwipeToPrev(lock: boolean) => Promise<void>

lockSwipes

DescriptionLock or unlock the ability to slide to the next or previous slide.
SignaturelockSwipes(lock: boolean) => Promise<void>

slideNext

DescriptionTransition to the next slide.
SignatureslideNext(speed?: number ๏ฝœ undefined, runCallbacks?: boolean ๏ฝœ undefined) => Promise<void>

slidePrev

DescriptionTransition to the previous slide.
SignatureslidePrev(speed?: number ๏ฝœ undefined, runCallbacks?: boolean ๏ฝœ undefined) => Promise<void>

slideTo

DescriptionTransition to the specified slide.
SignatureslideTo(index: number, speed?: number ๏ฝœ undefined, runCallbacks?: boolean ๏ฝœ undefined) => Promise<void>

startAutoplay

DescriptionStart auto play.
SignaturestartAutoplay() => Promise<void>

stopAutoplay

DescriptionStop auto play.
SignaturestopAutoplay() => Promise<void>

update

DescriptionUpdate the underlying slider implementation. Call this if you've added or removed child slides.
Signatureupdate() => Promise<void>

updateAutoHeight

DescriptionForce swiper to update its height (when autoHeight is enabled) for the duration equal to 'speed' parameter.
SignatureupdateAutoHeight(speed?: number ๏ฝœ undefined) => Promise<void>

CSS Custom Properties

NameDescription
--bullet-backgroundBackground of the pagination bullets
--bullet-background-activeBackground of the active pagination bullet
--progress-bar-backgroundBackground of the pagination progress-bar
--progress-bar-background-activeBackground of the active pagination progress-bar
--scroll-bar-backgroundBackground of the pagination scroll-bar
--scroll-bar-background-activeBackground of the active pagination scroll-bar
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